The hyphen key works on my computer (proof ----------) but for whatever reason my Omega 2+ doesn't like it. Kind of a big issue since there's a lot of commands that require it. Did your basic lame IT solutions; restarting it, making sure everything is up to date, carefully removing it from the expansion dock and inserting it back in and making sure it was all the way in, etc.

Fingers crossed that I don't have to ship it back since I just got it today.